30159020 has 48 divisors (see below), whose sum is σ = 67767840. Its totient is φ = 11234304.

The previous prime is 30159011. The next prime is 30159029. The reversal of 30159020 is 2095103.

It is an interprime number because it is at equal distance from previous prime (30159011) and next prime (30159029).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30158983 and 30159001.

It is not an unprimeable number, because it can be changed into a prime (30159029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35966 + ... + 36794.

It is an arithmetic number, because the mean of its divisors is an integer number (1411830).

Almost surely, 2^30159020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30159020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33883920).

30159020 is an abundant number, since it is smaller than the sum of its proper divisors (37608820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30159020 is a wasteful number, since it uses less digits than its factorization.

30159020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 30159020 is about 5491.7228626361. The cubic root of 30159020 is about 311.2712968552.

The spelling of 30159020 in words is "thirty million, one hundred fifty-nine thousand, twenty".